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TUBA Nmw mmm y., ,Tln v .WM /W .Bm um A m3 @y Rm 0mm M MT 5 ,W5 o. a m0N (No Model.) `6 Sheets-Sheet 2.

CyT. WORDSWORTH, E. WISBMAN 8v J. HOLRGYD.

MEGHANISM FUR TRANSMITTING MOTIVE POWER.

Patented Aug'. 24, 1897.

Wmffw. W Mk Shets--Sheet 3.

(No Model.)

C. T. WORDSWORTH, E. WISEMAN & J. HOLROYD..

MEGHANISM FOR TRAN'SMITTING MOTIVB POWER.

Patented-Aug. 24, 1897.

j "515ml, M w

(No Model.) 6 Sheets-Sheet 4.

C. T. WORDSWORTH, E.,WISEMAN 85.1. HOLROYD. MEGHANISM PoR TRANSMITTINGMOTIVB PoWBR.-

N0.\588,625. Patented Aug. 24,1897.

mcANonms PETERS C0. mwrouwumA WASHINGTON. n. c,

(No Model.) @sheets-sheet 5.

C. T. WORDSWORTH, WISEMAN 8v J. HOLROYD. lvlBcIL/.xmslvl PORTRANSMITTING MOTIVB POWER.

No. 588,625. I Paten-ted Aug. 24,1897.

TN: Nmws Farms co. vnoauwo.. WASHINGTON. n. c.

l(No Model.) s sheets-'sheet 6.

C'. T. WORDSWORTH, E. WISEMAN 8v J. HOLROYDl MEGHANISM PoR TRANSMITTINGMOTIVE POWER..

180.588.1625. Patented Aug. 24,1897.'

` UNITED ,STATES PATENT ,Erica f CHRISTOPHER kTHOMAS VORDSWORTH, OFMANCHESTER, EDMND WISE- MAN, OF LUTON, AND JOHN HOLROYD, OF LONDON,ENGLAND.

MECHANlSlVI FOR TRANSMITTING NIOTIVE POWER.

SPECIFCATION forming part of Letters Patent No. 568,625, dated August24, 1897. lApplication filed November 23, Serial No. 613,178. (Nomodel.)

To @ZZ whom t may concern: l y Be it known that we, CHRISTOPHER THOMASVVORDSWORTH, residing at 4 Corporation Street, Manchester, in the countyof Lancaster, EDMUND WISEMAN, residing at Cheapside, Lutonfin the countyof Bedford, and JOHN HOLROYD, residing at 13 Alleyn Terfrace, Park Road,/Ves't Dulwich, London, in the county of Surrey, England, engineers,subjects of the Queen of Great Britain, have invented certain new anduseful Mechanism for Transmitting Motive Power, of which the followingis a specification.

This invention relates to driving mechanism speciallysuitable for usewith gas-motors and vapor-motors where it is necessary to provideforstarting, stopping, and reversing a driven shaft, While the motor runscontinuously. According to our invention we provide improved mechanismfor accomplishing these results. In the accompanying drawings, Figure 1is a side elevation of a motor having mechanism coupled with it by whichto drive an automotor-carriage or other machine. Fig. 2 is an endelevation. Fig. 3 is a plan of the same. Figs. 4 and 5 are localsections showing the clutch-strap and its actuating-lever. Fig. 6 is anelevation of the hand-lever and its connections with the sliding blockforming part of the reversing mechanism. Fig. 7 is a sec* tion of apneumatic apparatus for controlling the lever 22. Fig. Sis a frontelevation of a part of the same. Fig. 9 is a sectional ,view of thecontrollingetap shown in Fig. 7. Fig. 10 is a plan of the same. Fig. 11is a secti'on of a pneumatic cylinder forv controlling the lever 22, andFig. 12 is an end elevation of the same.

The motor may be of any approved construction and may be operated in anydesired way. The motor shown is a gas-engine,whose main crank-shaftA isgeared at a to a counter-shaft b, driven Aat a slower speed. With eitherythe crank-shaft or the slower-driven shaft (the latterfpreferred) ashaft 1 is connected by a universal joint c. This shaft carries agear-Wheel d and a friction-pinion 4.

The wheel d gears by means of an intermediate Wheel d with a pinion 2 ona shaft e, which carries a friction-pinion 4X. Both shafts 1 and earemountedin a sliding block 3, arranged in any suitable manner on theframe of 'the motor. The friction-pinions 4 and 4X 55 may be of the sameor of different sizes, as the requirements may suggest, and areadaptedto act upon a large wheel 6, having frictionsurfaces on its inner andouter sides and mounted loosely on a shaft 5, which is the 6o shaftto'be driven. A lever S is pivoted at f to the side of the wheel 6, andto arms g of this lever are secured the two ends of a brakestrap 7 whichsurrounds a drum 9, fast on the shaft 5, and to drive the shaft theclutch- 6 5 strap is made to clip the drum. This is effected by a cam10, which operates on the lever 8. The cam is loose on the shaft 5 andis pressed in one direction by a spring g', arranged in a recess'in aflanged hub g2, and 7o the bowl h at the endV of the lever pressesagainst the cam and carries it around with the wheel 6. When, however,resistance is opposed to the rotation of the cam 10, the bowl at the endof the lever 8 rides up the inclined 75 surface of the cam and the strapis tightened upon the drum, which is then carried around together withthe wheel 6, and so the shaft 5 is driven. v

To start the shaft, the cam-piece is thrust 8o laterally against the hubg2 of the drum by means of acblock 11, having an inclined side t', whichcooperates with the inclined side of l a stationary block j, secured tothe frame of the machine. The block 11 can be turned 85 around theshaft. The block 11is formed in connection with an arm 12, which isconnected by the rod 13 with an arm 7s on the shaft v 14. Fixed uponthis shaft are the two quadrants l5 andA 16, which are formed in one 9opiece and which can be `locked in either of three positions by thelockingtreadle 17.1 The drawings show the quadrants locked in the middleposition, and in thisA position the inclined blocks exert no lateralpressure, but 95 the movement of the quadrants in either direction willturn the shaft 14 and by means of the connections just described willturn the movable inclined block 11 about the shaft 5 and cause the saidblock to ride up the roo fixed inclined block Thus resistance is offered to the rotation of the cam-piece 10, with the result that thelever 9 is turned and the strap is applied to the drum in the mannerbefore explained, and thus the Wheel 6 is clutched to the shaft 5. Thedirection of ro tation is controlled by the position of the block 3. Aspring-box L is mounted on the top of the block 3, and to a piston 'm inthis spring-box is attached a rod 1S, which is j ointed to the upper endof the rocking lever 19, the lower end of Which is connected by a link uto the bell-crank lever 20. The upperend of the bell-crank is pivoted ina die 0, which can slide in an inclined slot 2l, formed in connectionwith thehand-lever22. The hand-lever is shown in the middle position,and in this position neither of the pinions l ori engages with the Wheel6. 1When the hand-lever is moved from this position, the die o,slidingin theinclined slot 2l, causes movement of the block 3 and bringsone or the other of the pinions i or etX into gear, according to thedirection in which the handlever is moved. The hand-lever and quadrantscan be locked together by the wellknown devices p, as shown.

In cases Where it is inconvenient to use a hand-lever pneumaticapparatus may be provided to give the necessary movements. Thisapparatus may either consist of the diaphragm arrangement shown in Figs.7, 8, 9, and l0 or the cylinders shown in Figs; ll and l2. In the firstof these 23 is a flexible diaphragm secured in a cylindrical casin g24E. A spindle 25 is fixed to the diaphragm, one end of which isconnected with the lever 22, and the other Works in a bearing 26.Compressed air is admitted from the air-reservoir of a gas or oil engineor elsewhere to either side of the diaphragm by means of a tap, (shownin Figs. 9 and 10,) which controls the passage of air in the pipes 27and 28, leading to and from each side o f the diaphragm. This tapconsists of a conical plug 29, turning in a shell 30 by means of ahand-lever 3l.

32 is the pipe leading to the air-reservoir, and 33 is the exhaust-pipe.

In the apparatus shown in Figs. ll and l2, 341: is a cylinder with apiston 35 Working with in it and having passages 36 and 37 for admittingcompressed air to either side of the piston. 3S is avalve operated bythe lever 39. The valve is so constructed that when one end of cylinder34E is open to the air-supply the other is open to the exhaustlport 40.The ends of the passages 36 and 37, as is shown in Fig. ll, are set backfrom the end of the cylinder, and a narrow passage 41 is formed, so thatthe piston as it approaches the end of the cylinder is cushioned andbrought gradually to rest. The piston-rod 42 is connected to the lever22, as in the former case.

The treadle 17 may be of any approved construction. It is pivoted at q,pressed upwardly by a spring r, and provided with a lug s, adapted toengage the notches tin the quadrant 1G.

fe claim as our inventionl. The mechanism substantially as hereindescribed for starting, stopping and controlling a driven shaft Whilethe driving-motor may run continuously, comprising a shaft to be driven,a Wheel loose on said shaft, a drum on said shaft close to said Wheel, astrap encircling the drum, a lever attached to the Wheel and connectedwith the strap, a cam loose on the shaft engaging the lever, and carriedaround thereby when the wheel revolves, and means for checking therotation of the cam to cause it to act on the lever to tighten thestrap.

2. The combination, substantially as set forth, of a wheel mounted onthe driven shaft, a drum also mounted on said shaft, a lever pivoted tothe Wheel, a strap encircling the drum and connected with the lever, acam for operating the lever, means for resisting the movement of thecam, the sliding block, the shafts and pinions which the said blockcarries and means for shifting the block to bring one pinion or anotherto gear with the driven Wheel.

3. The combination, substantially as set forth, of a shaft, a Wheelmounted loosely on said shaft, a drum keyed to the shaft, a strapencircling the drum, a lever pivoted to the Wheel, connections betweenthe strap and the lever, a cam engaging the end of the lever and carriedaround thereby when the Wheel rotates, the inclined block j, theinclined block ll, interposed between the block j and the cam, and meansfor rotating the block 1l to cause it to bear against the cam and check-`,or retard the rotation thereof.

4. The combination, substantially as set forth, of the shaft to bedriven, a Wheel mounted loosely thereon, a drum keyed to the shaft, alever pivoted to thewheel, a strap encircling the drum and having bothends connected with said lever, a cam engaging one end of the lever andcarried around thereby when the Wheel rotates, and means for retardingthe rotation of the cam to cause it to act upon the lever to tighten thestrap.

CHRISTOPHER THOMAS WORDSWOR'IH. EDMUND WISEMAN. JOHN llOLllOl'D.

Vitn esses:

ROBERT B. RAUsFoRn,

FRED C. I'IARIns.

IOO

IIO

